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Styrene maleic acid micelles as a nanocarrier system for oral anticancer drug delivery – dual uptake through enterocytes and M-cells

Authors Parayath NN, Nehoff H, Müller P, Taurin S, Greish K

Received 30 April 2015

Accepted for publication 13 June 2015

Published 22 July 2015 Volume 2015:10(1) Pages 4653—4667

DOI https://doi.org/10.2147/IJN.S87681

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Govarthanan Muthusamy

Peer reviewer comments 4

Editor who approved publication: Dr Thomas J Webster

Neha N Parayath,1 Hayley Nehoff,1 Philipp Müller,1 Sebastien Taurin,1 Khaled Greish1,2

1Department of Pharmacology and Toxicology, University of Otago, Dunedin, New Zealand; 2Department of Oncology, Faculty of Medicine, Suez Canal University, Ismaileya, Egypt

Abstract: Drug delivery systems could potentially overcome low bioavailability and gastrointestinal toxicity, which are the major challenges for the development of oral anticancer drugs. Herein, we demonstrate the ability of styrene maleic acid (SMA) nanomicelles encapsulating epirubicin to traverse in vitro and ex vivo models of the intestinal epithelium without affecting the tissue integrity. Further, SMA micelles encapsulating a fluorescent dye dioctadecyl-3,3,3',3'-tetramethylindocarbocyanine perchlorate (DiI) showed twofold higher accumulation in the liver and spleen, 15-fold higher accumulation in the tumor, and sixfold higher accumulation in the lung as compared with the free DiI, following oral administration in a mice xenograft breast cancer model. Additionally, SMA micelles showed colocalization with microfold (M)-cells and accumulation in Peyer’s patches, which together confirms the M-cell mediated uptake and transport of SMA micelles. Our results indicate that SMA micelles, showing dual uptake by enterocytes and M-cells, are a potential tool for safe oral anticancer drug delivery.

Keywords: oral delivery, anticancer nanomedicine, enhanced permeability and retention effect, EPR

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